Growth and spectral-luminescence characteristics of modified BGO crystals

被引：5
|
作者：
Dunaeva, E. E. [1 ]
Ivleva, L. I. [1 ]
Doroshenko, M. E. [1 ]
Boldyrev, K. N. [2 ]
Papashvili, A. G. [1 ]
机构：
[1] Prokhorov Gen Phys Inst RAS, Vavilov Str 38, Moscow 119991, Russia
[2] Inst Spect RAS, Fizicheskaya Str 5, Moscow 108840, Russia
来源：
JOURNAL OF CRYSTAL GROWTH | 2019年 / 525卷
关键词：
RE doping; Crystal morphology; Czochralski growth; Bismuth germanate; Spectroscopic parameters; BI4GE3O12;
D O I：
10.1016/j.jcrysgro.2019.125205
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The optically homogeneous colorless bismuth germanate Bi4Ge3O12 (BGO) crystals (nominally pure and doped with Dy-3+) were grown by Czochralski method along [1 1 1] directions. Optimal bulk crystallization rate was estimated for nominally pure crystals of 0.7 cm(3)/h and 0.1 cm(3)/h for doped materials. Influence of annealing conditions on BGO real structure and properties was shown. The colored ("reddish") samples were obtained under special treatment. Absorption and IR luminescence spectra were measured for as-grown, annealed and doped samples. The peculiarities of colored BGO crystal and samples doped with Dy3+ ions were demonstrated.
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页数：6
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